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E1 Automatic Protection Switching Solution
(1+1 E1 Redundancy Switch)
The VCL-MegaConnect-Jr-APS offers 16 E1
solution with APS (1+1 Automatic Protection Switching). This equipment is offered as an
integrated 19-Inch rack mountable 2U high box.
This product allows the user to design 1+1 (protected) redundant E1 routes on similar
(fiber-fiber), or complementing (fiber-radio) transmission mediums. Additionally, it also
allows the selection of only the critical time-slots of the primary route to be re-routed
on the E1/T1 link on the redundant / standby route in the event of the failure of the
primary route, if the total carrying capacity of the stand-by redundant route is smaller
than that of the primary route.
For Example : This product shall allow the
user to select and specify the time-slots from multiple E1/T1 links in the "primary
route", which may be considered "critical" in nature and be re-routed to
the "redundant / standby route" of a smaller carrying capacity, in the event of
the failure of the "primary route".
The criterion for switching between the
primary (main) and the secondary (protected / stanby) routes is user programmable.
Criterion for switching between the primary (main) and the secondary (protected / stanby)
routes may be Loss-Of-Signal on E1 links, AIS (All-Ones AIS alarm condition), or excessive
CRC-4 errors etc. As stated above, the criterion for switching between the primary (main)
and the secondary (protected / standby) routes is user programmable. |
